Gmail History list is not giving complete data

问题

I am trying to get history from historyId which gmail api watch() gives

https://developers.google.com/gmail/api/v1/reference/users/history/list

I am getting historyId in the response like below

{
    historyId: 12345
}

I tried adding fields argument with no luck.

request to https://www.googleapis.com/gmail/v1/users/me/history?startHistoryId=12345&fields=historyId,history(id%2Cmessages) is also failing

Am I doing anything wrong?

回答1:

The response tells you that nothing has happened since the time your startHistoryId represents. If you send yourself a mail and try again with the same startHistoryId, you will get a new message as result.

If you are getting the historyId from watch(), it is another issue. The historyId you get in the push notification simply states the current historyId of the label you are watching. Think about it. How should Google know when you last synced? When you get a push notification, you need to use the historyId you stored since last time in your request.

来源：https://stackoverflow.com/questions/32248048/gmail-history-list-is-not-giving-complete-data